Soldering tin brass
Buy tin solders, designed for high-quality brazing of brass products, offers the company Elektrovek-steel. Effective prices are from the manufacturer. The supplier ensures the timely delivery of products to the address specified by the client.
Features of soldering brass
The process of soldering all brands of brass is different in that an oxide film is always formed on the surface of the alloy, and the process itself is accompanied by the evaporation of zinc, which occurs when the brass products are heated. It was found that on brasses that contain up to 15% Zn, the oxides are copper dioxide with zinc oxide particles embedded in it. This oxide is removed during the etching process. However, in copper alloys that contain more zinc, the oxide layer consists mainly of ZnO, the removal of which is technologically much more difficult.
With low-temperature brazing of brass tin-lead solders, rosin-alcohol fluxes are ineffective. For example, soldering brass grades LS59−1 or L63 should use fluxes based on zinc chloride.
Brass dissolves in the melts of tin-lead solders less actively than copper. Therefore, when soldering brasses, the intermetallic layers grow much more slowly. This adversely affects the mechanical properties of the brazed joints. For example, the tensile strength of copper joints welded with tin is 90 MPa, and that of brass compounds is 59 MPa.
Buy tin solder, with which you can solder brass, offers the company Elektrovek-steel. Available prices are from manufacturers. The supplier guarantees the prompt delivery of products to any point set by the customer.
Technological modes of soldering brass tin
Soldering of brass with low-temperature solders containing tin is used much more often. The point is that during high-temperature brazing of brass (for example, in furnaces where there is a reducing or neutral atmosphere), intense evaporation of zinc is observed. Therefore soldering brass in gas media can be carried out only after preliminary treatment of the soldering points with the appropriate fluxes. Without flux, soldering brass in the furnace is only possible when the alloy is pre-coated with a layer of copper or nickel, which protects the surface from the evaporation of zinc.
At temperatures 850… 870 ° C, brass parts are soldered in heated salt solutions. In order to improve the flow of solder into the gap, in baths with a solution there must be at least 4… 5% flux, which contains potassium or borax fluoroborate.
Tin solders with high-temperature brazing of brass with gas burners are rarely used, because at high temperatures evaporation and oxidation of zinc occurs more intensively, and the porosity of the seam increases.
Company Electrovek-steel offers to purchase consumables for soldering brass tin at manufacturer’s prices. The supplier provides prompt delivery of products to the address specified by the customer.